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  • pdf文档 Firebird 2.5 LangRef Update Russian

    слова Зарезервированные слова, добавленные в Firebird: BIGINT BIT_LENGTH BOTH CASE CLOSE CONNECT CROSS CURRENT_CONNECTION CURRENT_ROLE CURRENT_TRANSACTION CURRENT_USER DISCONNECT FETCH GLOBAL INSENSITIVE имён полей в таких запросах. Диалект 1 выдаст предупреждение, но в любом случае выполнит запрос. CROSS JOIN Добавлено: 2.0 Описание: начиная с Firebird 2.0 поддерживается предложение , которое SELECT ... FROM CROSS JOIN ... ::= {table | view | cte | (select_stmt)} [[AS] alias] Примечание: При использовании предложения CROSS JOIN Вы не должны использовать
    0 码力 | 364 页 | 1.45 MB | 1 年前
    3
  • pdf文档 Firebird 2.5 Language Reference

    Chapter 6. Data Manipulation (DML) Statements 197 | NATURAL [] JOIN | {CROSS JOIN | ,} ::= INNER | {LEFT | RIGHT | FULL} [OUTER] ::= ON JOIN keyword. Caution: if there are no columns with the same name in the two source relations, a CROSS JOIN is performed. We’ll get to this type of join in a minute. A Note on Equality  This note two NULLs considered equal: select * from A join B on A.id is distinct from B.code; Cross joins A cross join produces the full set product of the two data sources. This means that it successfully
    0 码力 | 521 页 | 2.30 MB | 1 年前
    3
  • pdf文档 firebird 40 language reference

    ::= [] JOIN | NATURAL [] JOIN | {CROSS JOIN | ,} ::= INNER | {LEFT | RIGHT | FULL} [OUTER] ::= ON columns with the same name in the two source relations, a CROSS JOIN is performed. We’ll get to this type of join in a minute. Cross joins A cross join produces the full set product of the two data sources Syntax <cross-join> ::= {CROSS JOIN | ,} Chapter 6. Data Manipulation (DML) Statements 275 Use of the comma syntax is discouraged, and we recommend using the explicit join syntax. Cross-joining
    0 码力 | 778 页 | 3.43 MB | 1 年前
    3
  • pdf文档 firebird language reference 30 rus

    неявного соединения ..................................................... 265 Перекрёстное соединение (CROSS JOIN) ......................................................... 265 Неоднозначные имена полей в соединениях [] JOIN | NATURAL [] JOIN | {CROSS JOIN | ,} ::= INNER | {LEFT | RIGHT | FULL} [OUTER] ::= Внимание Если в двух исходных таблицах не будут найдены одноименные столбцы, то будет выполнен CROSS JOIN. Неявные соединения В стандарте SQL-89 таблицы, участвующие в соединении, задаются списком
    0 码力 | 719 页 | 3.98 MB | 1 年前
    3
  • pdf文档 firebird 30 sprachreferenz

    ::= [] JOIN | NATURAL [] JOIN | {CROSS JOIN | ,} ::= INNER | {LEFT | RIGHT | FULL} [OUTER] ::= ON Quellbeziehungen keine gleichnamigen Spalten, wird ein CROSS JOIN ausgeführt. Wir kommen in einer Minute zu dieser Art von Join. Cross Joins Ein Cross-Join erzeugt das Full-Set-Produkt der beiden Datenquellen linken Quelle erfolgreich mit jeder Zeile in der rechten Quelle abgeglichen wird. Syntax <cross-join> ::= {CROSS JOIN | ,} Chapter 6. Data Manipulation-Statements (DML) 263 Bitte beachten Sie
    0 码力 | 701 页 | 3.12 MB | 1 年前
    3
  • pdf文档 MSSQL to Firebird Russian

    хранилища данных в интегрированной среде, дающей возможности создания запросов к разным базам данных (cross-database query). Другая причина перехода - исключение привязки к определенному поставщику программного
    0 码力 | 22 页 | 287.07 KB | 1 年前
    3
  • pdf文档 Firebird 1.0 QuickStart

    Firebird Reference Guide. Both books ship on the IBPhoenix CD as e-books in PDF format. They are fully cross-referenced. • Read the Firebird Reference Guide, chapter 10: Resources and References – for a collection
    0 码力 | 26 页 | 179.05 KB | 1 年前
    3
  • pdf文档 firebird gbak

    entire database at the moment the backup began. The dump file created by a default gbak backup is cross platform (transportable) so a backup taken on a Windows server can be used to recreate the same database
    0 码力 | 34 页 | 191.73 KB | 1 年前
    3
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